761
FNCA52 TJSJ 261930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST FRI JUN 26 2026
DISCUSSION
A FIRE DANGER STATEMENT HAS BEEN ISSUED FOR TODAY (FROM 10 AM TO
4 PM AST) ACROSS PORTIONS OF THE SOUTHERN COASTAL PLAINS OF
PUERTO RICO DUE TO THE COMBINATION OF CRITICALLY DRY FUELS, HIGH
KBDI VALUES, SUSTAINED WINDS OF 15 TO 20 MPH WITH GUSTS UP TO
30 MPH, AND POSSIBLE MINIMUM RELATIVE HUMIDITY VALUES IN THE 40S
TO LOW 50S AS DRY AIR WITH HIGH CONCENTRATIONS OF SAHARAN DUST
CONTINUE MOVING OVER THE REGION. PROLONGED RAINFALL DEFICITS,
ABNORMALLY DRY TO SEVERE DROUGHT CONDITIONS, AND CRITICALLY DRY
FUELS ALSO CONTINUE. THESE CONDITIONS WILL FAVOR RAPID WILDFIRE
IGNITION AND EXTREME FIRE BEHAVIOR, MEANING ANY FIRES THAT
DEVELOP WILL LIKELY SPREAD QUICKLY AND BECOME DIFFICULT TO
CONTAIN. OUTDOOR BURNING IS HIGHLY DISCOURAGED. WITH MORE E-NE
STEERING FLOW, SHALLOW AFTERNOON CONVECTION COULD PROVIDE SOME
RELIEF TO THE SW COASTAL PLAINS TODAY.
PRZ014-270800-
SOUTHEAST COASTAL PLAINS-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 10 10
TEMP (24H TREND) 73 (-3) 91 (0) 73 92
RH % (24H TREND) 88 (+5) 48 (-1) 88 44
WIND 20FT/EARLY(MPH) E 14 E 14 E 12 E 16
WIND 20FT/LATE(MPH) NE 9 SE 16 E 11 E 16
MIXING HGT(FT-AGL/MSL) 5480 5240
TRANSPORT WND (MPH) E 15 E 16
VENT RATE (KT-FT) 71240 73360
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-270800-
SOUTHERN HILLS-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 10 10
TEMP (24H TREND) 69 (-4) 87 (0) 69 89
RH % (24H TREND) 97 (+7) 60 (0) 97 58
WIND 20FT/EARLY(MPH) NE 12 E 11 E 12 E 12
WIND 20FT/LATE(MPH) NE 10 SE 12 E 12 SE 12
MIXING HGT(FT-AGL/MSL) 5930 5820
TRANSPORT WND (MPH) E 14 E 15
VENT RATE (KT-FT) 71160 75660
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-270800-
NORTH COASTAL PLAINS-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 10 10
TEMP (24H TREND) 73 (-3) 90 (+1) 71 91
RH % (24H TREND) 99 (+8) 61 (-3) 98 58
WIND 20FT/EARLY(MPH) E 17 E 12 E 16 E 13
WIND 20FT/LATE(MPH) E 13 E 17 E 11 E 19
MIXING HGT(FT-AGL/MSL) 5450 5460
TRANSPORT WND (MPH) E 14 E 16
VENT RATE (KT-FT) 65400 76440
DISPERSION 5 5
DSI 6 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-270800-
NORTHERN HILLS-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS TSTMS NONE SHOWERS
CHANCE PRECIP (%) 20 50 0 30
TEMP (24H TREND) 70 (-4) 88 (-1) 69 90
RH % (24H TREND) 99 (+5) 65 (+3) 99 60
WIND 20FT/EARLY(MPH) NE 14 E 11 E 12 E 11
WIND 20FT/LATE(MPH) E 12 E 14 E 8 E 16
MIXING HGT(FT-AGL/MSL) 5390 6570
TRANSPORT WND (MPH) E 10 E 12
VENT RATE (KT-FT) 48510 65700
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-270800-
WEST COAST-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS TSTMS NONE SHOWERS
CHANCE PRECIP (%) 30 60 0 20
TEMP (24H TREND) 73 (-1) 91 (-1) 72 92
RH % (24H TREND) 98 (+7) 61 (-1) 98 57
WIND 20FT/EARLY(MPH) NE 19 E 13 E 13 E 13
WIND 20FT/LATE(MPH) NE 17 E 13 E 12 E 14
MIXING HGT(FT-AGL/MSL) 4290 4750
TRANSPORT WND (MPH) SE 9 E 13
VENT RATE (KT-FT) 34320 52250
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-270800-
EASTERN INTERIOR-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 20 30
TEMP (24H TREND) 70 (-5) 88 (+1) 71 90
RH % (24H TREND) 98 (+6) 60 (-2) 98 58
WIND 20FT/EARLY(MPH) NE 12 E 11 E 13 E 13
WIND 20FT/LATE(MPH) E 11 E 13 E 12 E 12
MIXING HGT(FT-AGL/MSL) 6770 6370
TRANSPORT WND (MPH) SE 14 SE 15
VENT RATE (KT-FT) 81240 82810
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-270800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 20 30
TEMP (24H TREND) 68 (-5) 83 (+2) 69 85
RH % (24H TREND) 100 (+5) 66 (-6) 100 66
WIND 20FT/EARLY(MPH) NE 10 E 10 E 10 E 12
WIND 20FT/LATE(MPH) E 8 E 11 E 10 E 11
MIXING HGT(FT-AGL/MSL) 4980 4820
TRANSPORT WND (MPH) SE 15 SE 16
VENT RATE (KT-FT) 64740 67480
DISPERSION 5 5
DSI 3 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-270800-
CENTRAL MOUNTAIN RANGE-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS TSTMS NONE SHOWERS
CHANCE PRECIP (%) 20 60 0 20
TEMP (24H TREND) 67 (-4) 86 (+2) 67 88
RH % (24H TREND) 99 (+6) 68 (+3) 99 61
WIND 20FT/EARLY(MPH) NE 13 E 9 E 8 E 10
WIND 20FT/LATE(MPH) NE 12 E 9 E 6 SE 10
MIXING HGT(FT-AGL/MSL) 6230 7760
TRANSPORT WND (MPH) SE 10 SE 9
VENT RATE (KT-FT) 56070 62080
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-270800-
CAYEY MOUNTAIN RANGE-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 20 30
TEMP (24H TREND) 69 (-4) 84 (+1) 69 85
RH % (24H TREND) 100 (+4) 66 (0) 100 65
WIND 20FT/EARLY(MPH) NE 11 E 10 E 10 E 11
WIND 20FT/LATE(MPH) NE 8 E 11 E 10 E 11
MIXING HGT(FT-AGL/MSL) 5920 5470
TRANSPORT WND (MPH) E 14 E 16
VENT RATE (KT-FT) 71040 76580
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-270800-
VIEQUES-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 30 30
TEMP (24H TREND) 75 (-3) 88 (0) 76 89
RH % (24H TREND) 90 (+4) 59 (-4) 89 60
WIND 20FT/EARLY(MPH) NE 14 E 14 E 16 E 16
WIND 20FT/LATE(MPH) E 14 E 11 E 16 E 13
MIXING HGT(FT-AGL/MSL) 3730 3230
TRANSPORT WND (MPH) E 15 E 20
VENT RATE (KT-FT) 48490 54910
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-270800-
CULEBRA-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 20 20
TEMP (24H TREND) 76 (-3) 90 (+2) 77 91
RH % (24H TREND) 92 (+6) 57 (-8) 90 59
WIND 20FT/EARLY(MPH) NE 14 E 14 E 16 E 16
WIND 20FT/LATE(MPH) E 14 E 12 E 16 E 13
MIXING HGT(FT-AGL/MSL) 3590 3220
TRANSPORT WND (MPH) E 16 E 20
VENT RATE (KT-FT) 50260 54740
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-270800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS TSTMS NONE NONE
CHANCE PRECIP (%) 30 50 0 0
TEMP (24H TREND) 73 (-3) 92 (+1) 74 93
RH % (24H TREND) 90 (+9) 47 (-5) 88 46
WIND 20FT/EARLY(MPH) E 16 E 16 E 14 E 18
WIND 20FT/LATE(MPH) NE 17 SE 18 E 16 SE 20
MIXING HGT(FT-AGL/MSL) 5000 4950
TRANSPORT WND (MPH) E 16 E 21
VENT RATE (KT-FT) 70000 89100
DISPERSION 5 5
DSI 2 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-270800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 20 10
TEMP (24H TREND) 75 (-4) 87 (+1) 76 87
RH % (24H TREND) 91 (+6) 62 (-6) 90 64
WIND 20FT/EARLY(MPH) E 14 E 16 E 17 E 16
WIND 20FT/LATE(MPH) E 16 E 12 E 17 E 13
MIXING HGT(FT-AGL/MSL) 3410 3170
TRANSPORT WND (MPH) E 18 E 20
VENT RATE (KT-FT) 54560 53890
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-270800-
ST CROIX-
330 PM AST FRI JUN 26 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 20 10
TEMP (24H TREND) 76 (-3) 88 (+1) 76 88
RH % (24H TREND) 92 (+6) 62 (-4) 91 64
WIND 20FT/EARLY(MPH) E 14 E 14 E 16 E 14
WIND 20FT/LATE(MPH) E 14 E 13 E 16 E 13
MIXING HGT(FT-AGL/MSL) 4900 4610
TRANSPORT WND (MPH) E 15 E 18
VENT RATE (KT-FT) 63700 73760
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page